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‘25,1946 I
s'rArs s" PATENT voer-‘ice
- 2,411,596
New York, N. Y., and Islyn~
Hohl, Newar ,
Thomas, Livingston, and Johnassignm
cuts, to
Benjamin H. Shapiro,
‘N. J ., 'assignors, by mesne
Plastic Parts Development Corporation,’ New- '
ark, N. 3., a corporation of New Jersey
Application June 11, 1945, Serial No. 598,798
4 Claims. __(Cl. ‘46-205)’
,tionallyengaged by the driving disc ll to be ro-v
The presentl‘invention relates. to a toy and I
tated thereby and correspondingly rotate the
shaft ‘28 which is journaled in the boss ll
helicopter, the blades of which are rotated by " ‘moulded inthev upper member" of the fuselage.
the, movement 'of -the carrying wheels when the
It‘ would be dif?cult and extremely costly, even
if it were possible, to mould‘from a plastic .a
toy is pulled along a'iiooring.
more particularly to a pull toy in the form of a
unitary member comprising, the helicopter blade
10 and frictionally driven disc i2. It would simi
plastic material. The movable parts vof the toy
larly be extremely dlmcult and costly, if at all‘
comprise a .member forming helicopter blades 10 possible, to mould from a plastic materiala uniand which member is :journaled for rotation in
tary structure comprising the 'toy‘. carrying,
the fuselage‘ofthehelicopter' to simulate the
action of this ‘type of airplane. The helicopter
. ‘
wheel: I! and 20 and the frictional driving mem
ber I
~ blades are operatively connected to the support
ing wheels of the'helicopter so as to! be driven
In order to form these members from parts
that may each‘ be molded from a single die, we
thereby asthe toy is pulled" and moves along
the blades ill from a member having
. construct
the shaft 28 from the end of which there ex
and on‘ a ?oor..
These ‘elements-arelfinecessarily of such con- .
tends a shaft 34 of reduced diameter. The axle
otfbe ordinarily molded -' or shaft 28 is inserted into the opening in the
struction that-theyi: __ V
in one, piecefrom'; plastic material. The pres 20 boss 30 to extend into the interior 36 of the
ent invention‘ztherefor'e,fcontemplates the pro
upper. section 32 of the fuselage. The upwardly
vision of a method ‘ ' anufacturing such opera
tive eiements'IYfrom parts-"that may be molded
from a plasticnlaterlal and assembling them in
the toy as units.
These and othervland further objects of the
‘present invention wiltbe clear from the following
description‘ and they drawings appended thereto
in which
Fig. 1 is a plan view of a pull toy helicopter
extending sleeve .28 of the driven disc is then
arranged .on the shaft 34 against the shoulders
40 and cemented thereto by any suitable means.
Each element of the blade assembly may thus
be molded from a single die and when assem
bled‘in the upper section 32 of the fuselage can,-v
not be‘ removed therefrom, the blades l0 and‘
shaft 28 serving as stop members against the
boss 30.
Each wheel l8 and.“ is likewise made in ‘a
Fig. 2 is a section on the line 2-2 of Fig. 1;
single die and has extending therefrom an axle
Fig. 3 is a section on the line 3-4 of Fig. 1;
forming element 39 from each of which the
Fig. 4 is an exploded sectional -view of the
reduced shaft 42 extends. The driving disc I4
parts which are assembled to form: the helicop
is made in the same die that the driven disc I2
ter blade and ‘its frictional driving member, the 35 is ‘made and also has a sleeve 14 extending
according to our invention;
axle, supporting wheel and blade driving ‘mem
ber assembly.
Referring now to the drawings, the ‘elements
The wheels and disc driving member are as-;
semble'd on the lower section 20 of the fuselage
of the toy helicopter are formed from a plastic:
by inserting a shaft 39 in one-of the carrying
40 members 48 extending down from the section
which is molded into the desired form.
It will of course be understood that the various
'2'. - Each shaft 42 is inserted in the sleeve 44
elements of the helicopter are molded by con
with'the disc ll extending up through the open
ing 22 and the sleeve 44 and pins 42 cemented
ventional dies, which form no part of the 'pres-.
the shoulders-43 bearing against the
ent invention.
helicopter blade 45 together,
driving disc ii and its .sleeve '44. The thus
disc l2 which is '
formed wheel, axle and driving disc assembly
[0 is provided with
H ‘carried on the
unit is held in place by the wheels I8 and 20
engaged by the driving disc
helicopter supporting '
axis IS on which the
which serve as stops against the downwardly
wheels l8 and 20 are mounted. As the helicopter -
extending carrying members 46.
is pulled-along the ?oor or support on which it
The lower‘ and upper sections 26 and 32 are
then cemented together to form the completed
helicopter toy.
is carried, the wheels i8 and 20 rotate to drive
the disc I‘ which extends through the-opening '
- It will be ‘understood that, if desired, the driv-I
'22 in the floor 24 of the under member 26 of
the fuselage.‘ The driven disc ‘l2 extending 65. ing discs 12 and,“ may be formed from gear
down from the axle 28 of the blades i0 is fric
2,411,500 ‘
members instead of the frictional discs illus- ‘
driving means being open to receive and secure
It will be apparent that each of ‘the elements
wheels, said driving means extending through the,
therein at each side' thereof each shaft on the
comprising our toy helicopter may be molded in
a corresponding die from a plastic material and
opening in the‘?oor of the lower fuselage sec
tion in engagement with the driven means, the
readily assembled together to form a compara
upper and lower 'sections of the fuselage being
tively inexpensive helicopter pull to)’. the blades
secured together.
of which will be rotated upon moving the toy on
a supporting surface.
We claim:
1. In a pull toy in the form of a helicopter, the
~ parts of which are each molded from a plastic’ ‘
2. The toy of claim 1, said driven and driving
means comprising discs in frictional engage
3. In a toy molded from a plastic material. a
pair of wheels, each having a shaft extending
material, a blade member, an upper fuselage sec
therefrom, and a driving means open at each end
tion, a boss in the upper fuselage section, said
for receiving therein at, each side thereof the
‘blade member having a, shaft Journaled in the ll shaft of each wheel, said shafts being cemented
boss and extending into the interior of the upper _ in the opening to form a wheel and axle assembly
fuselage member, a driven means having a sleeve,
' having an intermediate driving means mounted
for receiving and securing therein the said shaft
on the blade member extending in the interior
4. The toy of claim 3 said driving means com
of the upper fuselage section, ‘a lower fuselage 20 prising a disc having a sleeve extending there
sectionhaving carrying means extending down
ward therefrom and having an opening in the
. ?oor thereof, a wheel on each side of the fuselage
and having a shaft iournaled in the carrying
means and a driving means having a sleeve, said
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